ZyXEL Communications 4.6 ユーザーズマニュアル

Chapter 17 Maintenance Screens

Media Server User’s Guide

The screen is also the same for the Create a certificate authorized by other CA option.

Maintenance > SSL > Create or Edit a Certificate 

The following table describes the labels in this screen. 

Use this screen to turn off the NSA or perform a software restart. A software restart is faster than 
turning the NSA off and then turning it on again. Before shutting down or restarting, check the 
System Status > Active Sessions screen to make sure that no one is logged into the NSA or 
transferring files to or from the NSA.

Maintenance > SSL > Create or Edit a Certificate

Common Name

This name describes the certificate’s origin, either in the form of an IP address or a 
domain name.

Host IP Address

Select this option and enter the NSA’s IP address if you want to use this for the 
common name.

Host Domain Name

Select this option and enter the NSA’s domain name if you want to use this for the 
common name

Organizational Unit 
(Optional)

Enter this name of the organizational unit which owns or maintains the NSA. This is 
an optional field.

Organization (Optional)

Enter this name of the organization or company which owns or maintains the NSA. 
This is an optional field.

Country (Optional)

Enter this name of the country in which the NSA is located. This is an optional field.

Key Type

Select the certificate’s key type, either RSA or DSA. RSA is a public-key encryption 
and digital signature algorithm, while DSA is only a digital signature algorithm.

Key Length

Select the encryption key length. The longer the key, the better the encryption 
security. The only drawback to having a long key is that the file encrypted with it 
swells in size as well.

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